How to get current point at certain time points?

Hi!

I would like to set a sampling rate of get(gcf, 'currentpoint') to such that I would get the current point let's say in every half second. My current script is:

       cp=get(gcf,'currentpoint');
       t=timer;
       set(t,'executionMode','fixedrate');
       set(t,'period',.5);
       set(t,'timerfcn',cp);
       start(t);

However, this doesn't work. I get an error that says: TimerFcn callback must be set to a string, a function handle, or a 1-by-N cell array.

How to fix my script?

Answer 1

[Walter Roberson]

       curfig = gcf;
       cp = @(src,event) get(curfig,'currentpoint');

But once you have fetched it, what are you going to do with it?

http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.3F